Cui, Min, Anika Frühauf, Anne Kerstin Reimers, Yolanda Demetriou, and Claus Krieger. “The Positive and Negative Impact of Online Social Ties on PA Behaviour: A Qualitative Analysis in Chinese Adolescents”. Journal on Efficiency and Responsibility in Education and Science 18, no. 3 (September 30, 2025): 219–228. Accessed October 3, 2025. https://www.eriesjournal.com/index.php/eries/article/view/1651.